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Article Dans Une Revue Journal of Chromatographic Science Année : 2005

Isolation of flavanol-anthocyanin adducts by countercurrent chromatography

Résumé

Pigments of the flavanol-anthocyanin (F-A+) type detected earlier in wine are synthesized using a protocol adapted from the synthesis of procyanidin dimers. The F-A+ adduct thus obtained is purified by countercurrent liquid-liquid partition, currently referred to as countercurrent chromatography (CCC). The solvent system consists of tert-butyl methyl ether-n-butanol-acetonitrile-water (2:2:1:5, acidified with 0.1% trifluoroacetyl) with the light organic phase acting as a stationary phase and the aqueous phase as the mobile phase. Four fractions are recovered and analyzed by high-performance liquid chromatography coupled to a diode-array detector and electrospray ionization mass spectrometer. The multilayer CCC method allowed the separation of pigments in three different groups. The first group consists of hydrosoluble pigments present in fraction 1; the second group consists of the F-A+ adducts [catechin-malvidin 3 glucoside (Mv3glc), along with some (catechin)2-Mv3glc]; and the third group is their anthocyanin precursor, Mv3glc.

Dates et versions

hal-02677941 , version 1 (31-05-2020)

Identifiants

Citer

Erika Salas, Hélène Fulcrand, Celine Poncet-Legrand, Emmanuelle Meudec, N. Kohler, et al.. Isolation of flavanol-anthocyanin adducts by countercurrent chromatography. Journal of Chromatographic Science, 2005, 43 (9), pp.488-493. ⟨10.1093/chromsci/43.9.488⟩. ⟨hal-02677941⟩
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